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Vulnerability · Published Oct 4, 2021 · Assigned by mitre

CVE-2021-42008

High 7.8

In plain English

A high-severity security flaw in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 75% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.6%top 24.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC

Official description

The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.14.6-1DEBIAN-CVE-2021-42008
Debian:13linux5.14.6-1DEBIAN-CVE-2021-42008
Debian:14linux5.14.6-1DEBIAN-CVE-2021-42008
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-42008
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-42008
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-42008

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References